como modificar el contrato

Tengo un token creado en un contrato inteligente. la dirección del contrato es 0x1fa1a89f72c1011122e62261bb962b123ac40a76

He intentado transferir el token varias veces y recibo el siguiente error. ¡Advertencia! Error encontrado durante la ejecución del contrato [Instrucción incorrecta]

https://etherscan.io/tx/0x7d7571080d6469a558847c075283d30ef197ca69ba8761242ec469a44521e248

el código fuente del contrato inteligente es

contract FRPoint {
    /* Public variables of the token */
    string public standard = 'Token 0.1';
    string public name;
    string public symbol;
    uint8 public decimals;
    uint256 public initialSupply;

    /* This creates an array with all balances */
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;


    /* Initializes contract with initial supply tokens to the creator of the contract */
    function FRPoint() {

         initialSupply = 90000000000000000000;
         name ="FRP$";
        decimals = 9;
         symbol = "FRP";

        balanceOf[msg.sender] = initialSupply;              // Give the creator all initial tokens
        uint256 totalSupply = initialSupply;                        // Update total supply

    }

    /* Send coins */
    function transfer(address _to, uint256 _value) {
        if (balanceOf[msg.sender] < _value) throw;           // Check if the sender has enough
        if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
        balanceOf[msg.sender] -= _value;                     // Subtract from the sender
        balanceOf[_to] += _value;                            // Add the same to the recipient

    }







    /* This unnamed function is called whenever someone tries to send ether to it */
    function () {
        throw;     // Prevents accidental sending of ether
    }
}

Perdí éter como gas mientras realizaba la transacción y es posible recuperarlo.